No, i havent. This was my first thought, but the graphics driver installer is only certified for ubuntu and fedora at the moment. There are workarounds to get the Ubuntu version to run on Mint, but it apparently has the potential to screw things up, so I havnet done it.The driver version im currently running is 2.1 Mesa 9.0.3

I have the same problem. Intel graphics sucks. A few months back everything worked out fine with LM 14 XFCE and oibaf drivers, then suddenly Steam would not start and ever since it has just been problems.